Content: Teen

Synopsis: Tsukasa mysteriously appears in an unknown world in which he has no recollection of the past or how he got there, except for the knowledge that that this mysterious world is actually an MMORPG (Massively multiplayer online role-playing game) in which characters gather to complete quest, gain experience to become more powerful, battle monsters, and search for rare treasures. Unlike the other players in "The World" Tsukasa can feel actual pain and is unable to logout of the game. After he comes to terms with the truth he slowly becomes accustom to a group of players as they learn the secret of an item known as "The Key of the Twilight" which may hold the ability to bring back his memories. The only hint he has is a mysterious cat and the voice of a young girl. Tsukasa must now battle against the Crimson Knights who protect the online game "The World" while he searches for the truth.

Genres: Adventure, Drama, Fantasy, Psychological, Sci-Fi